Propeller fan



FIG. 1 is a front, bottom, and right side perspective view of a propeller fan showing our new design;

FIG. 2 is a rear and left perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a left view thereof;

FIG. 8 is a right view thereof;

FIG. 9 is an enlarged partial view of the area indicated in FIG. 1;

FIG. 10 is an enlarged partial view of the area indicated in FIG. 2;

FIG. 11 is an enlarged partial view of the area indicated in FIG. 3; and,

FIG. 12 is an enlarged partial view of the area indicated in FIG. 4. 

CLAIM The ornamental design for a propeller fan, as shown and described. 